TribalPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

PRODUCT INFORMATION

Tribal kills weeds by root and/or foliage uptake and rapid translocation to the grow- ing points. Adequate soil moisture is important for optimum activity of this product. When adequate soil moisture is present, this product will provide residual control of susceptible germinating weeds; activity on established weeds will depend on the weed species and the location of its root system in the soil. Use of this product in accordance with label directions is expected to result in normal growth of rotational crops in most situations; however, various environmental and agronomic factors make it impossible to eliminate all risks associated with the use of this product. Therefore, rotational crop injury is always possible

WEED RESISTANCE MANAGEMENT MODE OF ACTION (MOA)

Tribal herbicide is a mixture of the active ingredients S-metolachlor, metribuzin and sulfentrazone.

• S-Metolachlor is a biosynthesis inhibitor (Group 15 mode of action) preventing cell division in emerging weeds.

• Metribuzin is a photosystem II inhibitor (Group 5 mode of action) leading to cellular membrane disruption and plant death.

• Sulfentrazone is a protoporphyrinogen oxidase inhibitor (Group 14 mode of action) leading to cellular membrane disruption and plant death. Contact your local extension agent, crop advisor, or sales representative to find out if suspected resistant weeds to these MOAs have been found in your region. Do not assume that each listed weed is being controlled by multiple mechanisms of action. Co-formulated active ingredients are intended to broaden the spectrum of weeds that are controlled. Some weeds may be controlled by only one of the active ingredient in this product. A given weed population may contain or develop resistance to an herbicide or herbicide MOA after repeated use. Appropriate resistance-management strategies should be followed to mitigate or delay resistance. If levels of control provided by applications of this product is reduced, and cannot be accounted for by factors such as misapplication, abnormal levels of target species or extremes of weather, it may be the case that target species have developed a strain resistant to applications of this product.

Suspected herbicide-resistant weeds may be identified by these indicators:

• Failure to control a weed species normally controlled by the herbicide at the dose applied, especially if control is achieved on adjacent weeds;

• A spreading patch of non-controlled plants of a particular weed species; and

• Surviving plants mixed with controlled individuals of the same species. If resistance develops, this product may not provide sufficient control of target species. Where you suspect target species are developing resistance, contact State/ local agricultural advisors. Integrated weed management guidelines promote an eco- nomically viable, environmentally sustainable, and socially acceptable weed control program regardless of the herbicide(s) used. The highlights of successful integrated weed management include: 1. Correctly identify weeds and look for trouble areas within field to identify resistance indicators. 2. Rotate crops. 3. Start the growing season with clean fields. 4. Rotate herbicide modes of action by using multiple modes of action during the growing season and apply no more than 2 applications of a single herbicide mode of action to the same field in a 2-year period. One method to accomplish this is to rotate herbicide tolerant trait systems. 5. Apply listed rates of herbicides to actively growing weeds at the correct time with the right application techniques. 6. Control any weeds that may have escaped the herbicide application. 7. Thoroughly clean field equipment between fields. 8. Scout before and after application. Contact your local agronomic advisor for more specific information on integrated weed management for your area. Users should report lack of performance to regis- trant or their representative. For mixtures including this herbicide note that each listed weed may not be controlled by multiple mechanisms of action. Refer to crop specific directions (below) for maximum application rates and number of applications.